{"id":40039,"date":"2025-05-27T07:12:57","date_gmt":"2025-05-26T23:12:57","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/40039.html"},"modified":"2025-05-27T07:12:57","modified_gmt":"2025-05-26T23:12:57","slug":"%e6%b7%b1%e5%85%a5java-tcp%e6%b5%81%e5%a5%97%e6%8e%a5%e5%ad%97%e7%bc%96%e7%a8%8b%ef%bc%9a%e9%ab%98%e6%95%88%e6%9c%8d%e5%8a%a1%e5%99%a8%e6%9e%84%e5%bb%ba%e4%b8%8e%e9%ab%98%e5%b9%b6%e5%8f%91%e5%ae%9e","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/40039.html","title":{"rendered":"\u6df1\u5165Java TCP\u6d41\u5957\u63a5\u5b57\u7f16\u7a0b\uff1a\u9ad8\u6548\u670d\u52a1\u5668\u6784\u5efa\u4e0e\u9ad8\u5e76\u53d1\u5b9e\u6218\u4f18\u5316\u6307\u5357\u200b"},"content":{"rendered":"

\"\"<\/p>\n

\u4e00\u3001TCP\u6d41\u5957\u63a5\u5b57\u7f16\u7a0b\u00a0<\/h3>\n

1.1\u3001API\u4ecb\u7ecd\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/h4>\n

ServerSocket\u662f\u521b\u5efaTCP\u670d\u52a1\u7aefSocket\u7684API<\/span><\/p>\n

\u6784\u9020\u65b9\u6cd5<\/span><\/p>\n

\"\"<\/p>\n

ServerSocket\u65b9\u6cd5\u00a0<\/span><\/p>\n

\"\"<\/p>\n

\u00a0Socket<\/span><\/p>\n

\"\"<\/p>\n

\u00a0Socket\u65b9\u6cd5<\/span><\/p>\n

\"\"<\/p>\n

1.2\u3001\u6a21\u62df\u5b9e\u73b0\u670d\u52a1\u5668<\/h4>\n

1.2.1\u3001\u6784\u9020\u65b9\u6cd5<\/h5>\n

public ServerSocket serverSocket=null;
\n public TcpEchoServer(int port) throws IOException {
\n serverSocket=new ServerSocket(port);
\n } <\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u4e0a\u8ff0\u521d\u59cb\u5316serversocket\u5bf9\u8c61\u5e76\u7ed1\u5b9a\u7aef\u53e3\u53f7<\/span><\/p>\n

1.2.2\u3001\u670d\u52a1\u542f\u52a8\u6d41\u7a0b<\/h5>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0TCP\u662f\u6709\u8fde\u63a5\u7684，\u7b2c\u4e00\u6b65\u5e94\u4f18\u5148\u5904\u7406\u8fde\u63a5\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef，\u542f\u52a8\u670d\u52a1\u540e，\u6253\u5370\u4e00\u4e2a\u4e0a\u7ebf\u901a\u77e5，Socket\u5bf9\u8c61\u63a5\u53d7serversocket\u63a5\u6536\u5230\u7684\u5bf9\u8c61，\u5efa\u7acb\u8fde\u63a5\u540e\u5904\u7406\u8fde\u63a5…<\/p>\n

public void start() throws IOException {
\n System.out.println("\u670d\u52a1\u5668\u4e0a\u7ebf！");
\n while(true){
\n Socket socket=serverSocket.accept();
\n processConnect(socket);
\n }
\n }
\npublic void processConnect(Socket socket){
\n \/\/\u5904\u7406\u8fde\u63a5
\n } <\/p>\n

\u5904\u7406\u8fde\u63a5<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4e0a\u8ff0start\u65b9\u6cd5\u5df2\u7ecf\u5efa\u7acb\u4e86\u8fde\u63a5，\u5bf9\u4e8e\u7528\u6237\u7684\u4e00\u6b21\u8fde\u63a5\u53ef\u80fd\u4f1a\u6709\u591a\u4e2a\u8bf7\u6c42，\u4f7f\u7528\u5728\u5904\u7406\u8fde\u63a5\u7684\u65b9\u6cd5\u4e2d，\u6211\u4eec\u518d\u6b21\u5957\u7528while\u5faa\u73af\u5b9e\u73b0\u4e0a\u8ff0\u529f\u80fd~~<\/p>\n

public void processConnect(Socket socket) throws IOException {
\n System.out.printf("[%s:%d]\u5ba2\u6237\u7aef\u4e0a\u7ebf\\\\n",socket.getInetAddress(),socket.getPort());
\n try(InputStream inputStream=socket.getInputStream();
\n OutputStream outputStream=socket.getOutputStream()){
\n while(true) {
\n byte[] bytes = new byte[4048];
\n inputStream.read(bytes);
\n \/\/\u5c06\u5b57\u7b26\u6570\u7ec4\u8f6c\u5316\u4e3a\u5b57\u7b26\u4e32
\n }
\n }
\n } <\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4e3a\u4e86\u4f7f\u7528\u66f4\u65b9\u4fbf，\u4f7f\u7528Scanner\u6765\u5c01\u88c5InputStream<\/span>，\u5e76\u901a\u8fc7scanner.next()\u8bfb\u53d6\u8f93\u5165\u3002Scanner\u9ed8\u8ba4\u4f7f\u7528\u7a7a\u767d\u4f5c\u4e3a\u5206\u9694\u7b26<\/span>，\u56e0\u6b64\u4f1a\u9010\u4e2a\u8bfb\u53d6\u4ee5\u7a7a\u767d\u5206\u9694\u7684\u5b57\u7b26\u4e32\u3002\u5f53\u4e0d\u518d\u8bfb\u53d6\u5230\u6570\u636e，\u8bf4\u660e\u8fde\u63a5\u65ad\u5f00，\u7ed3\u675f\u5faa\u73af\u5373\u53ef\u3002\u4f7f\u7528PrintWriter \u5c01\u88c5OutputStream ，\u7528\u4e8e\u53d1\u9001\u54cd\u5e94<\/p>\n

\u5173\u4e8eInputStream<\/span>\u548c<\/span>OutputStream<\/span>\u5185\u5bb9\u77e5\u8bc6\u7684\u56de\u987e\u94fe\u63a5\u5982\u4e0b：<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u65b0\u624b\u5fc5\u770b！\u7528Java\u73a9\u8f6c\u6587\u4ef6\u8bfb\u5199：File\u7c7b+\u5b57\u8282\u6d41\u6838\u5fc3\u6280\u5de7\u89e3\u6790<\/span><\/p>\n

public void processConnect(Socket socket){
\n System.out.printf("[%s:%d]\u5ba2\u6237\u7aef\u4e0a\u7ebf\\\\n",socket.getInetAddress(),socket.getPort());
\n try(InputStream inputStream=socket.getInputStream();
\n OutputStream outputStream=socket.getOutputStream()){
\n Scanner scanner=new Scanner(inputStream);
\n PrintWriter printWriter=new PrintWriter(outputStream);
\n while(true){
\n if(!scanner.hasNext()){
\n System.out.printf("[%s:%d] \u5ba2\u6237\u7aef\u4e0b\u7ebf\\\\n",socket.getInetAddress(),socket.getPort());
\n break;
\n }
\n String request=scanner.next();
\n String response=procsee(request);
\n printWriter.println(response);
\n System.out.printf("[%s:%d] req:%s rep:%s",socket.getInetAddress(),socket.getPort(),request,response);
\n }
\n } catch (IOException e) {
\n throw new RuntimeException(e);
\n }
\n } <\/p>\n

\u6ce8\u610f<\/span>：Scanner \u6784\u9020\u65b9\u6cd5\u4e2d\u7684\u53c2\u6570\u539f\u672c\u5373\u4e3a InputStream \u5bf9\u8c61<\/p>\n

\"\"<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4f7f\u7528\u5728\u901a\u4fe1\u8fc7\u7a0b\u4e2d，\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7InputStream\u8c03\u7528read\u65b9\u6cd5\u8bfb\u53d6\u5230\u5b57\u7b26\u6570\u7ec4\u4e2d，\u4e5f\u53ef\u4ee5\u501f\u52a9Scanner\u76f4\u63a5\u8bfb\u53d6\u00a0<\/p>\n

\"\"<\/p>\n

\u62bd\u8c61\u7406\u89e3ServerSocket\u548cScoket\u5173\u7cfb\u548c\u804c\u8d23<\/span><\/p>\n

\"\"<\/h4>\n

\u00a01.2.3\u3001\u5904\u7406\u8fde\u63a5\u89e3\u6790<\/h5>\n

\"\"<\/p>\n

\u00a01.3\u3001\u6a21\u62df\u5b9e\u73b0\u5ba2\u6237\u7aef<\/h4>\n

1.3.1\u3001\u5b8c\u6574\u4ee3\u7801<\/h5>\n

package TcpEcho;<\/p>\n

import java.io.IOException;
\nimport java.io.InputStream;
\nimport java.io.OutputStream;
\nimport java.io.PrintWriter;
\nimport java.net.Socket;
\nimport java.util.Scanner;<\/p>\n

public class TcpEchoClient {
\n public Socket socket=null;
\n public TcpEchoClient(String ip,int port) throws IOException {
\n socket=new Socket(ip,port);
\n }
\n public void start() {
\n Scanner sc=new Scanner(System.in);
\n try(InputStream inputStream=socket.getInputStream();
\n OutputStream outputStream=socket.getOutputStream()) {
\n Scanner scanner=new Scanner(inputStream);
\n PrintWriter printWriter=new PrintWriter(outputStream);
\n while(true) {
\n System.out.println("\u8bf7\u8f93\u5165\u60a8\u8981\u8f93\u5165\u7684\u5185\u5bb9：");
\n String request=sc.next();
\n printWriter.println(request);
\n printWriter.flush();
\n String response=scanner.next();
\n System.out.println(response);
\n }
\n } catch (IOException e) {
\n throw new RuntimeException(e);
\n }
\n }<\/p>\n

public static void main(String[] args) throws IOException {
\n TcpEchoClient tcpEchoClient=new TcpEchoClient("127.0.0.1",8776);
\n tcpEchoClient.start();
\n }
\n} <\/p>\n

1.3.2\u3001\u901a\u4fe1\u6d41\u7a0b<\/h5>\n

\"\"<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5ba2\u6237\u7aef\u6784\u9020\u65b9\u6cd5\u4e2d\u4f20\u5165IP\u548c\u7aef\u53e3\u53f7\u5b9e\u4f8b\u5316Socket\u5bf9\u8c61\u540e，\u5728\u5e95\u5c42\u4f1a\u4e0eTCP\u5bf9\u7aef\u5efa\u7acb\u8fde\u63a5，\u5efa\u7acb\u94fe\u63a5\u540e，\u670d\u52a1\u5668\u4e5f\u4f1a\u4fdd\u5b58\u5ba2\u6237\u7aef\u7684\u4fe1\u606f<\/span><\/p>\n

1.3.3\u3001\u6570\u636e\u4f20\u9012\u6d41\u7a0b<\/h5>\n

\"\"<\/p>\n

1.3.4\u3001\u533a\u5206\u4e24\u7aef\u53e3Socket\u5bf9\u8c61\u00a0<\/h5>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u7684\u4e24\u4e2a socket \u5bf9\u8c61，\u5206\u522b\u5728\u4e0d\u540c\u8fdb\u7a0b\u4e2d，\u751a\u81f3\u5728\u4e0d\u540c\u4e3b\u673a\u4e2d，\u56e0\u6b64\u7edd\u5bf9\u4e0d\u662f\u540c\u4e00\u4e2a\u5bf9\u8c61；<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u8fd9\u4e24\u4e2a\u5bf9\u8c61\u5b58\u5728\u5bc6\u5207\u7684\u5173\u8054\u5173\u7cfb，\u53ef\u4ee5\u628a\u8fd9\u4e24\u4e2a socket \u5bf9\u8c61\u7406\u89e3\u4e3a\u4e24\u90e8\u7535\u8bdd：<\/p>\n